Matchmaking Is Not Working

#1 - Jan. 20, 2014, 5:01 p.m.
Blizzard Post

I’ve waited a week to post this, just to make sure I wasn’t simply having bad luck. Every single day, I lose 70-100% of the games I play during off-peak hours. During peak hours, my winrate seems to be about 50%.

At one point, my win-loss record was something like 70-70. Now, about 60 games later, I am 20 games under .500. The only thing that changed was a week spent playing during off-peak hours – something I had not been doing before.

I don’t have the time to walk everyone through Intro to Statistics, but trust me: I am not the problem. Unless you want to argue that my skill doubles or triples when the clock hits 8PM, my off-peak winrates are too many standard deviations from my peak rates. And both rates are too many standard deviations from my mean. Meaning it’s the system, not me.

edit – Obviously my numbers are approximate. I don’t keep a detailed record of my daily win distributions. But the .500 to 20 games under .500 is accurate.

#5 - Jan. 20, 2014, 7:25 p.m.
Blizzard Post

@zilcho.7624: Are you taking into consideration the rating reset that happened about a month ago?

1) It could be that your MMR was reset higher than it was before. This should settle quickly because your deviation and volatility were also reset.

2) Playing during off-peak hours, especially while your deviation/volatility were high, could have caused your MMR to settle somewhere higher or lower than it should be.

Of course, this is just speculation. I will keep an eye on your account and see if I learn more.

#13 - Jan. 20, 2014, 10:23 p.m.
Blizzard Post

There is currently an issue with the queue system. Inviting to roster seems bugged, maybe it is linked?

No. I don’t think so. Also, the invite bug should be fixed now.